Amount of increase (decrease) in the fair value of derivatives recognized in the income statement.

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Amount, before tax and reclassification, of gain (loss) from derivative instrument designated and qualifying cash flow hedge included in assessment of hedge effectiveness.

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Fair Value Measurements - Gains and Losses on Derivative Instruments in Consolidated Statement of Income (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Derivative Instruments, Gain (Loss) [Line Items]
Amount of (Loss) Gain Recognized in Other Comprehensive Income on Derivatives	$ (2,052)		$ (4,393)
Amount of (Loss) Gain Recognized in Other Comprehensive Income on Derivatives		$ (1,747)		$ 863
Designated as Hedging Instrument
Derivative Instruments, Gain (Loss) [Line Items]
Amount of (Loss) Gain Recognized in Other Comprehensive Income on Derivatives	(1,164)		(2,714)
Amount of Gain (Loss) Reclassified from Accumulated Other Comprehensive Income into Income	888		1,679
Amount of Gain (Loss) Reclassified from Accumulated Other Comprehensive Income into Income		1,792		1,890
Designated as Hedging Instrument \| Net sales
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Reclassified from Accumulated Other Comprehensive Income into Income	143		998
Amount of Gain (Loss) Reclassified from Accumulated Other Comprehensive Income into Income		1,089		871
Designated as Hedging Instrument \| Interest expense
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Reclassified from Accumulated Other Comprehensive Income into Income	(30)		(94)
Amount of Gain (Loss) Reclassified from Accumulated Other Comprehensive Income into Income		(32)		(103)
Designated as Hedging Instrument \| Other non-operating income
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Reclassified from Accumulated Other Comprehensive Income into Income	775		775
Amount of Gain (Loss) Reclassified from Accumulated Other Comprehensive Income into Income		735		1,122
Not designated as hedging instruments: \| Foreign Currency Derivative \| Other non-operating income
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Recognized in Income on Derivatives	$ 2,120	741	$ 1,490	784
Derivatives Designated as Cash Flow Hedges \| Designated as Hedging Instrument
Derivative Instruments, Gain (Loss) [Line Items]
Amount of (Loss) Gain Recognized in Other Comprehensive Income on Derivatives		$ 45		$ 2,753